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Finding the Fourth Proportional to 257,557.20, 386,335.80 and 244,435.20

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Solution

The fourth proportional to 257,557.20, 386,335.80 and 244,435.20 is: 366,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,557.20 : 386,335.80 = 244,435.20 : x
  2. Step 2: Convert to fraction form
    257,557.20/386,335.80 = 244,435.20/x
  3. Step 3: Cross multiply
    257,557.20x = 386,335.80 × 244,435.20
  4. Step 4: Simplify right side
    257,557.20x = 94,434,068,540.16
  5. Step 5: Solve for x
    x = 94,434,068,540.16/257,557.20
  6. Step 6: Final answer
    x = 366,652.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.